I've been thinking about the breeding results of my Yellow Siskins from 2015/2016 and how these results make me think that maybe birds know the long range weather forecast.....so if my thoughts below sound a little weird please forgive me


With my first pair of Yellow Siskins I produced 7 young....6 cocks and 1 hen. My friend produced 6 from his pair with 5 hens and 1 cock. We have not had much rain in Melbourne and even less in my area (Northern suburbs), whereas my friend has had a reasonable amount of rain in his area (South East).
My theory is that birds produce a greater proportion of cocks to hens when they know food supply is going to be limited. With less rain comes less food, hence a greater proportion of cock birds.
If my theory is right I'd be interested in other members thoughts on how birds know if the long range weather forecast includes plenty of rain or not.
Cheers
Paul
